Thill-coupling



(No Model.)

J. A. BOOZEL & J. (L MOONEY.

WtfifiSSSS: Irwerzfoz 6 W6 I John A .Boazel 1 John (I .Mmmev By their .dhorne yg w PETERS, Pivolo-Lilhd raphnr. Walhlnglan.

NITED Sans JOHN A. BOOZEL AND JOHN C. MOONEY, OF EMLENTON, PENNSYLVANIA.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 365,782, dated July 5, 188?.

Application filed April .25, 1687. Serial No. 235,975.

gitudinal section, and Fig. 4 is aview of the coupling end of thethill in detail.

A is the axle of a vehicle, to which is se cured, by a yoke, B, a hollow box or housing, 0, open on its front side. In this housing there fits a slidingjonrnal-box, D, in which the thill E is journaled.

The journal-box D has a space, a, between its rear end, b, and the curved end of the thill, and when thejournal-box is inserted within the housing this spacea is immediately in line with two apertures, c c, in the top and bottom of the housing. box, however, always obstructs the rear portion of the apertures c 0 when the box is in position in the housing. The-journalbox is retained in position in thehousing by awedgeshaped coupling-pin, F, which is inserted in the apertures c c and through the space a. The pin thus couples the thillto the axle and prevents the box being removed from the housing. A set-screw, cl, taking against one of the sides of the coupling-pin, prevents its accidental removal. As far ,as described, however, the device is merely a coupling device,and would not prevent the rattling of the thills in case any of the parts should wear loose. The construction for rendering the coupling noiseless is an important feature of our invention. To this end the housing 0 is formed on each side with a curved projection, 6, against which abut lateral projections or cheeks f f, having curved faces conformed thereto on the thill E. The curved faces on the thill are concentric with thejouruals g of the thill, so as to permit the raising and lowering of the thills. When, now, the thills are to be attached to the axle, thejournal-boxes are inserted into the housings until the oheeksff come in contact A portion of the end I) of the (No model.)

with the projections e e. The wedge-shaped coupling-pin is then driven into position, and, acting upon the rear end, I), of the box,where it partly obstructs the apertures e c, it forces the cheeks into close contact with the projections. The contact should be close enough to permit the thills to rise and fall easily, but still so close as to permit no longitudinal movement of thejournal-box.

In case of wear on the journals of the thill or on the cheek-faces, which would permit longitudinal movement of the thill or the box,

the set-screw can be unloosened and the wedge be driven farther in, thus again tightening the coupling and preventing all rattling of the same. To remove the thills all that is necessary is to remove the coupling-pin.

By this simple and inexpensive device we provide-a perfectly efiicient and noiseless coupling.

YVe claim as our invention- 1. The housing secured to a vehicle-axle, having curved projections at its front, in combination with a sliding journal-box fitting in said housing, a thill journaled in said box hav ing curved projecting cheeks adapted to said projections, and a wedge-shaped coupling-pin,

substantially as set forth.

2. The housing 0, secured to avehicle axle, having apertures c c and curved projections e e, the sliding journal-box D, fitting in said housing and having end I), which partly obstructs said apertures c c, and a thill, E, journaled in said box so as to leave a space, a, be-

tween it and the end I), said thill having curved cheeksff, cooperating with said projections e e, in combination with a wedge-shaped coupling-pin, F, inserted in said apertures c c and through said space a, and a set-screw, (1, substantially as set forth.

In witness whereof we have hereunto signed our names in the presence of two'subscribing witnesses.

JOHN A. BOOZEL. JOHN C. MOONEY. 

